The Higgs From Aμ to Zμ: Higgs Boson Cross Section Measurements Using Diphoton and Four Lepton Decays at 13 Tev / Bijan Perry Berton Haney IV.

Format:

Book

Thesis/Dissertation

Author/Creator:

Haney, Bijan Perry Berton, IV, author.

Contributor:

Williams, Hugh H., degree supervisor.

University of Pennsylvania. Physics and Astronomy, degree granting institution.

Language:

English

Subjects (All):

Physics.

Physics and astronomy--Penn dissertations.

Penn dissertations--Physics and astronomy.

Local Subjects:

Physics.

Physics and astronomy--Penn dissertations.

Penn dissertations--Physics and astronomy.

Genre:

Academic theses.

Physical Description:

1 online resource (180 pages)

Contained In:

Dissertations Abstracts International 80-07B.

Other Title:

Higgs from A to Z

Place of Publication:

[Philadelphia, Pennsylvania] : University of Pennsylvania ; Ann Arbor : ProQuest Dissertations & Theses, 2018.

Language Note:

English

System Details:

Mode of access: World Wide Web.

text file

Summary:

This thesis presents measurements of the Higgs boson inclusive and differential cross sections with 36.1 fb-1 of proton-proton collision data from the Large Hadron Collider at a center of mass energy of 13 TeV recorded with the ATLAS detector. The cross sections are measured in the fiducial phase space of the H → ZZ* → 4l (four lepton) decay channel as well as in the total Higgs phase space, combining data from the H → ZZ* → 4l and H → γγ (diphoton) decay channels. These two channels have high sensitivity to the Higgs signal and allow for full reconstruction of the Higgs boson kinematics. Unfolding techniques are used to correct for detector effects in the measurements, and comparisons are made to various state-of-the-art Standard Model theory predictions such as the predicted gluon-gluon fusion total cross section at N3LO and the Higgs differential transverse momentum spectrum at NNLO. These precision measurements are used to set limits on anomalous Higgs boson couplings beyond the Standard Model within the framework of pseudo-observables. In the H → ZZ * → 4l analysis, the inclusive fiducial Higgs boson cross section is measured to be 3.62 ± 0.50 (stat) +0.25/-0.20 (sys) fb, in agreement with the Standard Model prediction of 2.91 ± 0.13 fb. In the combined analysis, the inclusive total cross section is measured to be 57.0 +6.0/-5.9 (stat.) +4.0/-3.3 (syst.) pb, in agreement with the Standard Model prediction of of 55.6 ± 2.5 pb. Measured differential cross sections are also presented for the Higgs transverse momentum, Higgs rapidity, number of associated jets, leading jet transverse momentum, and other kinematic variables.

Notes:

Source: Dissertations Abstracts International, Volume: 80-07, Section: B.

Publisher info.: Dissertation/Thesis.

Advisors: Williams, Hugh H.; Committee members: Justin Khoury; Elliot Lipeles; Christopher Mauger; Burt Ovrut.

Department: Physics and Astronomy.

Ph.D. University of Pennsylvania 2018.

Local Notes:

School code: 0175

ISBN:

9780438768581

Access Restriction:

Restricted for use by site license.

This item must not be sold to any third party vendors.